| Rumbling Hole | |
|---|---|
| Fairies Workshop | |
 Two cavers rigging the entrance pitch | |
  | |
| Location | Leck Fell, Lancashire, England |
| OS grid | SD 6717379128 |
| Coordinates | 54°12′25″N 2°30′17″W / 54.206836°N 2.504781°W |
| Depth | 126 metres (413 ft) (including cave) |
| Length | 1,091 metres (3,579 ft) (including cave) |
| Elevation | 351 metres (1,152 ft) |
| Discovery | 1899 |
| Geology | Carboniferous limestone |
| Entrances | 2 |
| Hazards | verticality, water |
| Access | Unrestricted |
| Cave survey | cavemaps |
Rumbling Hole is a cave on Leck Fell, in Lancashire, England. Its entrance is a 50-metre (160 ft) deep fenced shaft, and it rapidly descends a series of pitches to a low aqueous passage that has been connected to Lost Johns' Cave. It is part of the Three Counties System, an 87-kilometre (54 mi) cave system that spans the borders of Cumbria, Lancashire, and North Yorkshire.[1]
- ^ Allen, Tim (February–March 2012). "The True Length Unravelled". Descent (224): 24–25.